The PK-AS, an advanced version of the PKS-01, is the newest in tactical optics designed specifically for the combat operations of the Russian Special Forces. It not only fills the role of the traditional red dot as a CQB short range/fast acquisition sight, but also has unique features designed specifically for longer range combat shooting. It boasts a unique ability to facilitate single shot kills out to 400 meters when used with the AK-74. Using the newest machining techniques, the quality of this amazing sight is equal to US military optics which cost many times more. It’s fully coated prismatic lens system provides a remarkable, high contrast, wide angle field of view allowing for fast acquisition of moving and spaced targets. Its most unique feature is its state-of-the-art black dot-red dot operation. Under normal daylight conditions, a precise 1 MOA black dot enclosed in a simple elliptical range-finding circle is always visible without the use of the battery. When needed, a flip of the switch activates a 1.5 MOA red dot. This flexibility allows the PK-AS round the clock effectiveness in all environments. Another great feature is ease of making alignment adjustments using its indexed ballistic cam. This thumbwheel style range turret is calibrated in equal 2 MOA increments which makes it easy to use the sight with any caliber rifle. The non-magnification design allows for both-eyes-open shooting eliminating eyestrain and maximum ability to register incoming targets. The precision dot system combined with the striking field of view produced by the high quality lens system provides far superior accuracy at distances equal to and exceeding those capable with iron sights. The advanced elliptical range finder accurately quotes distance. It is very light weight while being battle-field tough.